Condenser with small hydraulic diameter flow path
US4998580A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1988 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Jan 7, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2260/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An improved condenser for use in air conditioning or refrigeration systems. A pair of spaced headers have a plurality of tubes extending in hydraulic parallel between them and each tube defines a plurality of hydraulically parallel, fluid flow paths between the headers. Each of the fluid flow paths has a hydraulic diameter in the range of about 0.015 to about 0.04 inches. Preferably, each fluid flow path has an elongated crevice extending along its length to accumulate condensate and to assist in minimizing film thickness on heat exchange surfaces through the action of surface tension. Heat exchange surfaces may also be provided with microcracks or channels to enhance heat transfer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.